Sheet-registering mechanism



1- WHITE.

SHEET REGISTERING MECHANISM.

AFFHCATIC'! 2:3: 11115.7,1912. mun-1:0 cs1. 1.1221.

1 A1 9,595 k fented J 1111 13, 1922.

5 SHEETC-SPELT 1.

WI 7/1/5555; V WM? /1 70/? J. WHITE.

SHEET REGISTERING MECHANISM. APPLICATION. FILED AUGJ, 1912. RENEWED ocr. 1. I921- Patented June 13, 1922.

5 SHEETS-SHEET 2.

J. WHITE.

SHEET REGISTERING MECHANISM. APPLICATION FILED AUGJ, 1912. REHEWED OCT. 1,1921.

1,41 9,595 Patented June 13 1922,

5 SHEETS--SHEET 3 W/TA' E'SJES V l'A/VE/VTOE KK QQML/q,

J. WHITE.

SHEET REGISTERING MECHANISM.

APPLICATION FILED AueJ, 1912. RENEWED ocT.1,1921.

Patented June 13, 1922.

5 SHEETSSHEET 4.

J. WHITE.

SHEET REGISTERING MECHANISM.

APPLICATION FILED AUG. 7, I912.

RENEWED OCT. 1.1921. v

Patented J 11116 13, 1922:

5 SHEETS-SHEET 5.

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DIM/I 4/ QFECEF.

JOSEPH HITE, or PISCATAWAY TOWNSHIP, UNION COUNTY, NEW JERSEY,

ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, or ONE-HALF TO HALL PRINTING PRESS COMPANY, OF DUNELL'EN, NEW JERSEY, A CORPORATION OF NEW JERSEY, AND ON E-HALF TO MIEHLE' PRINTING PRESS AND MAN U- FACTURIN G COMPANY, OF NOIS.

CHICAGO, ILLINOIS A CORPORATION OF ILLI- -j- SH EET-REGISTERING- MECHANISM.

. f-Specifichticn of Letters Patent. Patented June 13, 1922 Application me a Aii ust 7, 1912, Serial'No. 713,745. 'Renewed October 1, 1921. Serial No. 504,764.

To all whom it mwyeomem:

Be it known that I, J OSEPH WHITE, a citizen of the United States, residing at .Piscataway Township, county of'Union, State of New Jersey, haveinvented certain new and useful Improvements in Sheet-Registering Mechanism, and I do declare the following to be a 'fiill, true, and exact description of said invention, such as will enable others skilled in the [art to which it appertains. to make use ofthe Same.

This invention relates to mechanism for positioning sheets in machines for oper-at ing on such sheets, and particularly to devices for positioning the sheets so that they will be printed in accurate registerin printing machines, especially in those machines in which the, sheets follow each other veryv closely, so that the time afl'orded for positioning the-sheet is very small. At the same time, this invention permits the greatest v accuracy .in the registry of sheets, although only the minimum time is taken to obtain such registry. My present invention is intended to position the sheet both laterally and longitudinally, although the mechanisms for side register and front register are more or less independent of each other.

/ My'novel mechanism may be used in connection with any formv of -sheet handling device by whichsheets are presented to machines.

Inmy present invention, I have provided means for firstsquaringithe sheet and give, ing it a preliminary front registry, then a fside registry and then a final front registry. 'This' order, although not absolutely 'necessary, is advantageous. 'By squaring the sheet first, the sideregistry maybe made" before the front registry and hile the sheet is in motion and'the final front regis-' try delayed untilthe sheet is presented to the machine, and preferable without stopping? the sheet.- I have also provided a mechanism by which the sheet is given a preliminary front registry and aside registry, while it is on the run toward the ma chine, and then is given its. fina l front "regis ter directly on the machine itself, thus eliminating any slip due to the transfer" of the sheet from one piece of mechanism which it has been registered toanother, which has been a difliculty with many other types of quick-acting registry devices. l

-To insure the greatest accuracy for both front and side registry, I find it desirable to provide mechanism which-will square that edge of the sheet on which final registry is I dependent, because it is practically impossible to depend on the edges of sheets being parallel, and working first on oneedge and gage'c'ould be removed, if found desirable,

after the sheet is thus secured. This would not be the case if the preliminary register were made from the rear-edge of the sheet, for in giving thefinal ,front registry, the sheet might, and in most cases would, have to be shifted to bring its front edge against. the front stops, which would necessitate the sheet being free and would. also require a re-registration'sidewise after the final front registry. f

I have also provided simple and efficient mechanismby which the most aceurateregister may be obtained without. stopping the sheet inits travel from the sheethandling devices into the machine which is to operate on it.

"In the drawings, F igure'. 1 represents a side elevationof my novel positioning devices -in connection with so'much of. a rotary printing press asis required to' illustrate the invention, this printing press being.

merely-an illustrative type of themachines to which my present invention, may be applied. V I v Figure 2 is a plan view.,of Eigure 1.

Figure tg'representsan enlarged sectional Figures 6, 7 8, and 9 represent my novel side gagin 'and sheet gripping devices as 7 they woul be seen when viewed fromthe right-bf ,Figure 1, Figures 6 "and 7 representing the, left and right grippers respectively, in their open position, and Figfor purposes of illustration. These cylinders,

in the type of machine shown, are cont nu to the carr1age ously rotating andare geared together in the usual manner. vided-with an impression or sheet carrying surface 11, and with a usual gripper shaft 12 carrying grippers 13, the shaft l2'being op-Z erated by the-cam roller 14 running on the cam 15 all as in the usual manner. At the front end of the surface 11 is a front gage 16 which is capable of adjustment in relation to the surface 11, being mounted on a slideway, as shown particularly in Figure 3, and held in adjusted position by the screw 17. 18 represents a. set of tapes or other sheet carriers running around pulleys 19 and driven thereby, the other end of the tapes extending to the right of Figure 1, to the.

sheet handling devices from whichthe sheets are received. A sheet placed on top of these tapes 18 will be carried thereby toward the cylinder 9. The pulleys 19 derive their mo tion from the cylinder 9 through the inter- 'mediate gear 20, engaging witha gear on the shaft 22 on which the pulleys 19 are mount 'ed. As will be seen particularly in Figure 4, in the form of the invention illustrated, the ratio of the gearingis such as to move the tapes 1 8 toward the cylinder 9 ate speed greater than that of the surface of the cylinder. 23 represents a set of" sheet guides spanning the gap between the pulleys 19 and thecylinder 9.

The side frames of the machine are pro.-

vided with guideways in which is mounted a reciprocating carrlage. This carr age 1s composed ofside frames 24, thefront shaft 25 and a pair of cross rods 26 fastened there in. Attached to the side frames 24 and running in the grooves in the side frames are a pair of front blocks 27 and apair 'of rear Blocks 28. Connected to the middle of the rods 26 is a frame 29, to which is pivotally attached a link 30 pivotally connected at 30' to a chain 31 engaging with sprockets 32.

Power isgivento these sprockets through the shaft 33 driven by the gear 34 through the intermediate gear 35 by the gear-36 on the end of the cylinder 9. In the form of the The cylinder 9 is pro-H invention illustrated, the pitch diameter of the gear 36 is larger than the circumference of the cylinder 9, and therefore the chain 31 has a greater velocity than the surface of the cylinder 9. As will be seen by an '70 inspection of Figure 1, by reason of the connection between the carriage and the chain 31, the carriage is reciprocated back and forth toward the cylinder 9, moving at a constant speed-when the connection 30' is travelling between the sprockets 32, and at a. variable speed when this connection 30 is moving around the sprockets. In. order to relieve the strain on the carriage and its driving mechanism when'it is being reversed, I provide dash pots 37-37 of the well known construction, these dash pots bemg entered by the pistons 38-.38 attached Referring now to Figures4 and 5, it will be seen that front block 27 is mounted on an eccentric bearing 39 rotating on the stud 39, so that when the bearing 39 is turned, the block 27 will rise-and fall in reference to the side frame 24, This eccentric bearing 1s provided with an arm 40 carrying a cam roller, 41, the arm v4O being also provided Wlih a spring 42 acting in the well known manner'to hold the arm 40. in the position to which it'maybeturned. A cam 43, fixed to the side frame er the press, is engaged by the cam roller 41 as the carriage is moved forward and moves the. cam roller 41 to the position shown in Figure 4, thus turni-n the eccentric bearing 39 in the block 27. i-nce me this. block 27 cannot itself move downward, being held in the guideways of the side frames of the machine, the side frames 24 I of the carriage are raised at the front end. Similar vcams 44 are providedat the rear of the machine to engage the cam rollers 41 on thereturn stroke of the carriage to turn the arm 40 downward and thus" lower the front of the side-frames 241 By this mechanism, the front end of the side frames"24 travels in one plane as it moves toward the, cylinder 9, and is then raised into another plane and returned in this new plane to .the original position, when it, is 4 again depressed." 5

At the front of the carriage, on the shaft 25,'are adjustably mounted a air of'heads' 45, each head carrying a fron' stop 46 adjustable horizontally in the well known manner, as shown-particularly'in F igure 4, and provided with means torclamp it in adjustedposition, also in the well known manner. Mounted in the frames 24 is a shaft 47 which is' provided with a pair of wiping arms 48 and with a. cam lever 49, carryin acam roller 50 normally held away from-the lever by a spring 51 but so mounted on its studas, to be mova le toward the'level;, longitudinally of the shaft 47. Theroller 50 is arranged to-engagewith a cam 52 supported on the side frames of the machine. As shown particularly in Figures 3 and 4, the forward motion of the carriage causes the roller to engagewith the lower surface of the cam 52 to rotate the shaft 47 and swing the arms 48 downward. When the roller 50 reaches-the end' of the cam, the spring 53 swings shaft 47 back again and raises the arms 48'. On the return stroke of the carriage,,the roller 50 engages with the side of the cam 52 and is pushed back toward the lever 49 against the pressure of the spring 51 to allow the. roller to pass the cam 52 without affecting the shaft 47.

e Extending between the side frames 24 of the carriage is a square bar 54. On this bar and at the left, as shown particularly in Figure 6, is a slidably mounted block 55, which carries'a gage pin 56 and a gripper 57 pivoted at 58. Connected to the gripper.

57 is a rod 59 carying a cam roller 60. The rod 59 is provided with a spring 61 arranged to hold the gripper 57 normally open. The block is provided with a grlpper surface 62 against which the gripper 57 closes and the gripper 57 is provided with a hole 163 to allow the in 56 to pass therethrough. The block 55 1s provided with a cam roller 63 and a spring 64, abutting against a block 65 fastened to the bar 54, tends to hold; the block 55 normally to the'left of Figure 6.

Extending across'the side, frames of the machine are a pair of bars 6666 on which is adjustably mounted a cam bar 67, shown particularly in Figure 2. This cam bar. is held below the bars 6666, as shown in Figure 6, and the--roller engages with the top of the cam bar 67 while the roller 63 engages with the side thereof.

The side gage and grippers on the other end of the bar 54, shown in Figure 7. is

similar in most respects to that on the leftv side. 68 is the block slidably mounted on the bar 54, 69 is the gage pin, 70 the gripper pivoted at 71 on the block 68 and provided with a rod 72 and cam roller 7 3. The block 68 is also providedwith the cam roller 74, the cam rollers 73 and 74 engaging with the cam bar 75 held by the cross bar 6666, ina manner similar to the cam bar 67. The

block 68 is normally held to the left of Figure,7 by the spring 7 6 pressing against the block 77 fastened to the bar 54.

spring alsoholds the fingers 78 in advance of the fingers 13 when the latter are being closed, so that the fingers 78 come to guiding position beforethe fingers 13 engage the sheet. The set screw 80 is'provide'd to limit 80 the relative'motion of the fingers 13 and 78. The fingers 78 are spaced apart on (either side of the gage 16 and the wiper 48 works between them. As will be seen by an inspection of Figures 3 and 1 0, a sheet may be forced with considerable pressure against the gage 16 and yet, by reason of the presence of the overguides 78, willnot buckle to permit its edge to slide up the gage 16. It will be understood that the gearing betwen the chain 31 and the cylinder 9 is such as to cause one complete reciprocation of the carriage for each sheet presented to the cylinder 9. I A sheet placed on the tapes 18 will be carried toward the cylinder 9. In most cases this sheet will be out of square; that is, one side of its front edge will be in advance of the otherf When the edge of the sheet reaches the front stops 46, which at this time will be-moving toward the cylinder9 but at a point somewhat distant therefrom, the tapes 18, moving at a speed greater than the stops 46, will move the sheet against the stopsand straighten it, the advanced side of 5 the sheet being held until the other side has ,reached its stop also. As the carriage starts forward, the blocks 55 and 68 are located laterally in the position shown in Figures 6 and 7, each block being moved away. from the center of the machine. The grippers 57-'70, are open at this time, the rollers 60-7 3 rtinning on low places on cams" 67 -75. This'permits the sheet S to pass between the side gages 56 and 69, as shown in Figures 6 and 7. As the carriage pro gresses toward the cylinder 9 with the sheet S pressing againstthe front stops 46, the rollrers 63 and 74 pass along thezcam bars 67 and 75 and the blocks 55 and 68 are closedin toward the center of the machine, the block '55 positively by ithe cam 67 and the block 68 yieldingly by the spring- 76. This brings the pins 56 and 69 against the edges of the sheet S, the pin 56 moving to gaging position and the pin 69 serving to ensure the edge of the sheet S contacting-with thepin 56. The open grippers 57 and'70 will serve to guide'the edge ofthe sheet. to the pins 56-69 if the side of the sheet should hang lower than the tapes 18. When the sheet has thus been pressed against the gages 56 and 69, the rollers 60 and 73, travelling along the top of the cam bars 67 and 75, are moved upward by passing to the high part of these cams, thus closing the grippers 57 and 70 securely on the sheet. The sheet is now held positively in side registered position, and at the same time the, grippers 57 and 70 ,assist in carrying the sheet toward the cylinder 9.

Shortly after. the grippers 57 and 70 close 'on the sheet, the stops 46 arrive at the position shown in Figure 3, the cylinder 9 being set so that its gage 16 will receive the sheet from the stops 46. Since, in my preferred form, the stops 46 are moving at a greater speed than the surface of the cylinder 9,

the stops 46 will pass the gages 16, leaving the sheet thereagainst. To ensure absolute accuracy in the final front registration of the s eet, the arm 48 is now moved by the cam 02 to engage the surface of the sheet close to its front edge and wipe it forwardly against the gage, 16, the fingers 7 8' acting as overguides to prevent the sheet from rising'up along the face of the gage 16. While this =wiping action is taking place, the sheet is still held by. the grippers 57 and 70 which are moving at a greater speed than the gage 16. This insures the-edge of the sheet being against the gage16, even without the action of the arm 48, As soon as the wiping action of the arm 48 has been completed, the grippers 13 close on the sheet in the usual manner, the side grippers 57 and 70 releasing the sheet to allow it to be? taken by the cylinder 9; Thisopening of the side grippers is caused ,by the lifting of the side frames 24 through the action-of the rollers 41 on the cam 43-, which brings about the changes shown more clearly by a comparison of Figures 6 and 8. The lifting ofthe side frames 24 raises the bar 54and ,with' it the block 55. Therdller 60, being on the top of. the cam .bar 67, is held thereagainst by the spring 61 which'op'ens'the gripper 57 as the block '55 rises. If a more rapid opening of the grippers is desired, the-cam bars 67 and 7 5 may be provided with depressions at the proper points, so that the rollers and 7 3 will run down the cams when the grippers are to be opened. After the sheet is taken by the grippers 13, the carriage is brought to rest proaches the cylinder 9, this causing the stops 46 to clear thecylinder and not injure the sheet held by, the gri pers 13. -For a similar reason,. the before escribed structure 4 "of the cam 52 is provided so that the arm 48V willnot be caused to damage the sheet on-the return stroke of the carriage.

the connection 30between the rod 30 and; the chain .31 passing around the sprockets .32, a shown particularly in Figure 1. The carri ge then returns-to its origina1 position in afplane above that in which it ap-- It will be understood that the. various stops, wipers, and gages are arranged to be shifted sidewise across the machine so that they may be brought into proper position for any width of sheet,

In locating the position of the stops 46, care is taken to make them coincide as nearly as possible with the position of the fronts'top 16 at the time that the sheet S is transferred from the one to the other. It-will be understood that the stops 46 are in themselves the devices at any given period of the cycle.

of operation may be influenced by the speed of working, an increase of speed setting1 up additional strains in the mechanism w ich tend tocause the'carrlage'to overthrow it's stroke. By providing stops 16 on the cylinder 9, this difficulty is'overcome, since the relation between the carriage and the. cylinder may be varied considerably without effecting. the final register of the sheet on the cylinder 9.

' It will be obvious that means for carrying out my invention may be varied widely from the specific device which I have chosen for purposes of illustration. My device for preliminary and final front registry may be used independently of the side registry and may be used in connection with any form ofsheet ,carrier. Similarly, my method of obtaining side registry andholding the sheet in this registry may be used with devices other than the ones which I have illustrated for obtaining the front registry of the sheet.

The arrangement of the mechanism for giving the sheet side registry and for maintalning it, in "side. register may be widely varied. It is possible to'use only one grip- "per instead of the two which I have shown.

Devices otherthan the yieldingly mounted pin 69 may be used to position the sheet againstthe ga e56. For instance, a roller adjacent the gage '56 may be used to draw the sheet thereagainst and this form will be useful when .very thin paper is loeiilghandled. At the same time, such a roller could be locked to hold the sheet in side registry,- thus-dis lensing with the side grippers. It is possi le also. to omit theglateral I motion of the gage 56 and its supporting block 55, though I find .it preferable to givethe gage this' motio'ni so' that a sheet can pass tliega'ge cwltllOllb interference. It is also possibleto mount the'side gage and the mechanism for moving the sheet thereagaiust;

so that they do not travel with the sheet. Some of the features of my invention are in the nature of refinements and maybe omitted if found desirable. For instance, the Wiper 48 and the overguides 78 may be omitted and fixed overguides instead of the movable ones may be used. For many purposes, a carriage other than the reciprocatin one which I have illustrated, might be use such, for instance, as a continuously rotating chain carrying the various bars and gages. The relative speeds of the carriages, tapes 18 and cylinder 9 may be greatly varied, it being possible to move the carriage at the same speed as the'cylinder. The tapes 18 must move faster than the stops 46, however, to properly square the sheet.

Having now described my. invention, what I claim as new and desire to secure by Letters Patent is as follows:

1. A continuously moving front gage, a moving front stop, means to support and move a sheet against said stop and means to support and-move said stop toward and past said gage while the sheet is against said stop.

2. A moving sheet supporting carrier, a sheet front gage toward which sheets are moved by said carrier, means to give a sheet on said carrier a preliminary front registry and to present it to said front age .while so registered and means to ive th front register against said gage.

3. A sheet carrier having. a sheet front gage thereon, a sheet conveyer arranged to carry sheets toward said carrier and said gage, a sheet stop movable in the path of a sheet on said conveyer at aspeed lower.

than that of the sheet and means to move said stop past said ga e while the sheet is positioned against sai stop.

4. A moving front gage, a movable front stop, means to position a sheet against said stop and .means to support and move said stop past said gage at a speed greater than that of said gage.

5. A sheet carrier having a sheet front gage thereon, a movable front stop, means to position a sheet against said stop and means to support and move said stop past said gage at a speed greater than that of said carrier.

6. A moving front gage, a pair of movable front stops, means to move a sheet against. said stopslat a speed greater than that of said stops, to square the sheet, and means to support and move said stops ast said gage at a speed greater than that 0 said gage.

7. A sheet carrier having a sheet gage thereon, a sheet stop and means to support and move said stop past said gage at a speed greater than that ofsaid gage.

8. A sheet carrier. a sheet stop, a carriage to support said stop, means to reciprocate said carriage to move said stop back and e sheet final forth past] the feeding point of said carrier and means to alter the position of said carriage to cause said stop to pass said feeding sheet while said stops are moving toward said "carrier and means to move said stops out of the path of the sheet. I v

10. A sheet carrier having a sheet front gage thereon, a'carr'iageand means to support and move it toward said carrier, a pair of sheet front stops on said'earriage, means to move a sheet against said stops to square it, and means on said carriage to move said sheet against said front gag 11. A sheet front gage, a sheet side gage, means to position a sheet against said side gage, means to 'hold the sheet, in fixed relation to said side gage and means to position the sheet against said front gage while the sheet is so held to 'said side gage.

12. A sheet front gage, asheet side-gage, mechanism constructed and arranged to po'- sition a sheet against said side gage and hold it in fixed relation to said gage and means to position the sheet against said front gage while the sheet is so held to said side gage.

13. Means to support and move a sheet in apredetermined .direction, means to give a sheet a preliminary front re 'stry,,means to give the sheet a final side registry and means togive the sheet a final front registry, said means being arrangedito operatesuccessivel in the order namedand while the sheet is -moving in said direction under control of said moving means. t

14. A sheet'front gage, a sheet front stop, means to move a sheet against said stop,

means to give a sheet side registry while-it is positioned against said front stop and means to holdthe sheet in side registry and to move it against said gage.

. 15. A moving front gage, a.moving front stop, a. moving side gage, said stop and gages all moving in the same general direction, means to move a sheet against said sto means to move the sheet against said si e gage and means tomove the sheet against said front gage.

16. A moving front gage, a moving front stop, a moving side gage, said stop and gages all moving in the same general direction. means to move the sheet against said .side gage and mechanism constructed and and against said front-gage.

17. Amoving sheet carrier having a sheet front gage thereon, means to support and arranged. to move a sheet against said stop move a sheet toward said carrier, mechanism constructed'and arranged to' glvea sheet a preliminary front'reglstry and a final side registry while moving toward said gage and means to give the sheet a final front registrg againstsaid gage.

hold the side edge of the sheet in fixed relation to said side gage when so positioned and to move the sheet against said front gage.

19. A sheet front gage, a sheet slde gage,

- means to move a sheet against said side gage said front gage.

20. A sheet front gage, a sheet side gage, means to movea sheet against said side gage to position it laterally and a pair of grippers constructed and arranged to engage the sides of the sheet while it is against said side gage and means to support and move said grippers toward said front gage.

21. A sheet front gage, a sheet side gage, means to move a sheet against said'side gage to position it laterally andmechanism constructed and arranged toengage the sides of the sheet fixedly while it'is against said gage to hold the side edge of the sheet in fixed relation to said side gage and to move said sheet toward said front gage. v

22; A sheet front gage, a sheet side gage, a support for said side gage, a gripper on said sup-port, adapted to graspasheet positioned against said side gage, means to move a sheet toward said side gage, means to close said gripper and means to move said support toward saidofront gage.

23., A sheet front gage,- means tosupport and move a sheet toward said front gage, a sheet side gage, a support for said side gage, a gripper on said support adapted to grasp a sheet positioned against said side gage, means to: position a sheet against said side gage while the sheet is moving toward said front gage, means to close said gripper and means to move said support toward said front gage. I

24:. A sheet front gage, a sheet side gage, means to hold the side edge of the sheet in fixed relation to said side gage and means to position the front edge of the sheet against said front gage while the sheet is so held.

25. A sheet front gage, a sheet front stop, a

sheet carrier adapted to move a sheet against said stop and against said gage and mechanism constructed and arranged to support said stop and to move it back and forth past said gage, passing in one direction when the sheet is positioned against said stop, close to the point of contact between said gageand sheet front gage, a sheet side gage, means to move a sheet against sa1d sidegage to position it laterally and means to the sheet on saidcarrier and in the opposite direction above such point. I

'26. A pair of moving front stops, means to move a sheet against said stops at a. speed greater than that of said stops, to square the sheet, means to give the sheetside registry after it .is squared and While it'is moving,

means to give the sheet front registry after said side registration and means to hold 1 '28. A reciprocating carriage, a sheet gripper thereon, a cam roller connected to said gripper, a fixed cam arranged to co-operate with said roller to close said gripper as said carriage moves in one direction and means to move said carriage in a direction at .right'angles to its path of reciprocation, to

permit said gripper to open While said roller is 'in contact with said cam. I

'29. A sheet support, a sheet side gage, means to support and: move said gagein a direction substantially parallel with the edge of a sheet on said support, means to move said gage toward said edge and means on said gage supporting and moving means and independent of said support to engage and hold unyieldingly, a sheet positioned against said gage.

30. A sheet support, a pair of sheet side gages, means to support and move said gages in a direction substantially parallel with the edges of a sheet on said support, means to move said gages, one yieldingly and one positively, toward said edges and means on said gage supporting and moving means and independent of said support to hold unyiel-din'gly a sheet positioned against said gages. 31-. A. sheet gripper, a traveling carriage therefor, means to close said gripper while said carriage is moving, means to shift said carriage at rightangles to its main direction of travel and connections between said gripper and said closing means constructed and arrangedto permit said gripper to be opened when said carriage is shifted.

32. A sheet gripper, a traveling carriage therefor, a fixed cam parallel to the main direction of travel of said carriage, a cam roller connected to said gripper and moving on that side of said camfarthest from said carriage, means to move said carriage towards said cam at'right angles to its main direction of travel, said parts being constructed and arranged to permit said gage with said carrier.

34. A sheet carrier, having a sheet front gage thereon, a sheet support adjacent said carrier, a carriage and means to support and reciprocate it toward and away from said carrier, a sheet side gage on said carriage, means to position a sheet on said support against said side gage, means on said carriage to engage and hold the sheet so positioned to move it toward said front gage with said carrier, and means to cause said engaging means to release the sheet before said carriage reverses its motion.

35. A sheet carrier, a sheet supportadjacent thereto, a carriage and means to support and move it toward and away from said carrier, a pair of side gages and a pair of side grippers on said carriage and means to move said side gages against a sheet on said support and to close said grippers on the sheet while said carriage is moving toward said carrier. I v

36. A sheet support, a moving front gage, means to give a sheet-side registry on said support, means to hold the sheet fixedly inside registry and move it toward said front gage, and means to engage the head of the sheet and move the edge thereof against said front gage while.the sheet is so held.

37. A front gage, a front stop, mechanism constructed and arranged to move a sheet first against said stop and then against said gage, and mechanism to move said stop and said gage in the direction of motion of the sheet and to move said stop past said gage when the sheet is positioned against said stop.

38 A sheet support, means to give a sheet on said support a preliminary front registry, additional means to maintain the sheet in such registry, and means to give the sheet a final front registry.

39. A moving sheet support, means to give asheet moving on said support a preliminary front registry, means moving with the sheet adapted to give thesheet a side registry and additional means adapted to give the sheet a final front registry.

40. A moving sheet support, means to give a sheet moving with said support a preliminary front registry, means to give the sheet a side registry, and additional means adapted to give the sheet a final frontregistry.

I JOSEPH WHITE.

Witnesses:

CHAS. F. BRYAN, JOHN W, Dawn. 

